Bench-vise.



PATENTED AUG. 30, 1904.

N0 MODEL.

' UNITED STATES Patented .August 30, 1904.

ATENT OFFTCE.

MORTIMER G. LEWIS, OF NE7 YORK, N. Y., ASSIGNOR TO EMMERT MANUFACTURING COMPANY, OF VVAYNESBORO, PENNSYLVANIA,

A CORPORATION.

BENCHFVISE.

SPECIFICATION forming part of LettersiPatent No. 768,810, dated August 30, 1904.

Application filed February 18, 1904. Serial No. 194,165. (No model.)

T0 1J/Z whom, it may concern:

Be it known that I, MORTIMER G. Luwrs, a citizen of the United States, residing at New York city, in the county and State of New York, have invented certain new and useful Improvements in Bench-Vises, of which the following is a full, clear, and exact speciication, reference being had to the accompanying drawings and to the letters marked thereon.

My invention has relation to bench-vises such as are ordinarily employed for clamping and holding objects to be worked upon, and particularly does it relate to those forms wherein some provision is made for accommodating different sizes and shapes of'piecesV of work or adjustments necessary to bring the work into convenient and proper lines to facilitate the working operations.

As most ordinarily constructed the back jaw of a bench-vise is held'perfectly rigid, the front jaw being made to move toward or from this back jaw and the body of the structure being mounted in an immovable way upon the work-bench or other suitable support. Benchvises have, however, heretofore been constructed in which one of the jaws was arranged to be adjusted in reference to the other jaw, so that the two jaws might assume positions not exactly parallel with each other in order to accommodate pieces of work of which the sides were not precisely parallel, and there have also been constructed bench-vises in which the main body of the vise was mounted, so as to turn as upon a vertical axis. rl`l1e means heretofore employed for locking'and holding the movable parts at the desired positions have not been found entirely satisfactory, being defective in being either insecure or liable to become disarranged or Abeing in the way of the tools usually employed by the workman, especially as in the operation of filing.

The object of my present invention is to provide or produce a bench-vise wherein the movable or adjustable parts may be securely and accurately locked in any of the desired positions without liability of interfering with Athe proper use of the vise, without danger of being disturbed while the vise is in use, and without permitting lost motion between the parts which are'locked together.

To accomplish the above-named objects and to secure other and further advantages in the matters of construction, operation, application, and use, my improvements involve certain novel and useful features of invention, as will be herein first fully described, and then pointed out in the claims.

In the accompanying drawings, forming part of this specification, Figure l is a top or plan view of a bench-vise having my improve- 'ments applied in connection therewith, the dotted lines indicating the back jaw shifted out of parallelism with the front jaw and the lfront jaw moved back from its position against theface of the front jaw, as shown by the full lines. Fig. 2 is a vertical axial view, partly in section and partly in elevation, showing the vise entirely closed as when there is no piece of work clamped between the jaws, the vise having a swivel connection with the base, so that it may be turned at any angle on the base, as around a vertical line. Fig. 3 is a seotion'and partial elevation on a plane through.

line fr of Fig. I, representing in detail one manner of arranging and mounting the means for locking the vise-body at any point on the base on which it turns, this view being upon a scale enlarged beyond that of previous iigures. Fig. t is a plan View (also enlarged beyond previous figures) of the Linder side of the back jaw, (shown in Figs. l and 2,) illustrating the location and arrangement of the removable screw-pin by which the back jaw is securely locked and held in place upon the body of the vise when it is desired to secure the back jaw in such positionthat it will be exactly parallel with the face of the front jaw. Fig. 5 is a plan view of a fragment of the base on which the body of thenvise is mounted and swiveled, the vise being removed from the base.

In all the gures like letters of reference wherever they occur indicate corresponding parts.

To hold the back jaw in parallel relation to the frfimtjaw, it has heretofore been proposed to employ a removable locking-pin passed from the top down through the rearwardlyextending portion of the back jaw and into l ln this position the prothe body of the vise. jecting pin is found to interfere with the proper use of the vise, particularly when the work is being filed, and not only this, but the holding-pin, being somewhat tapering, works loose, particularly when the object held is being struck, as by a hammer, and when the pin is removed the perforations for it become clogged with chippings and lilings, rendering it impossible to reinsert the pin withi out cleaning out the openings. Then the back jaw is left free to move upon its mounting, it automatically adjusts itself to the contour of the piece being clamped. between the two jaws; but when it is necessary to hold the two jaws in parallel relations to each other, f

ed upon a suitable slide-bar and adjustable back and forth by. any suitable arrangement of vise-screw, as C. Y

l) is one of the vise-heads mounted and arranged to turn upon the vise-body. lV hen not locked in position, this head automatically assumes a position suitable for clamping and holding the work, which is pressed against it by the other head, B. The preferred manner of mounting the head D upon the vise-body is indicated in Figs. 2 and 4, wherein t on the under part of the head D represents a circular ledge adapted to lit in and bear against a correspondingly-shaped portion of the visebody, and is another ledge concentric with the first one and fitting in a circular groove provided for it in the vise-body. The swinging or turning jaw or head il) receives the pressure transmitted to it through the traveling jaw B and is held against backward movement by bearing on the vise-body at the ledges a and That the jaw l) may move easily it is rather loosely fitted in place, so that when the two jaws are in parallel position the back jaw is not rigidly held, as is very desirable.

l tap both the body of the vise and the projection at one side of the swinging jaw, and in the threaded opening thus produced I insert a locking screw-pin, as E. This lockingscrew is made very slightly tapering, so that when properly seated it will operate after the manner of a wedge, forcing' the swinging jaw back to a lirm bearing against the projections provided for the purpose on the vise-body. This screw is easily unturned and removed when required and as easily inserted in place for use when required. The opening for it, being entirely protected by the overhanging portion of the swinging jaw, does not become clogged or stopped up by foreign substances, as in former constructions. The threads of the screw E are preferably flat on top, and the screw itself is of rapid pitch, so that it l may be properly seated without requiring too many turns; but any suitable form of screw may be provided for this purpose or any form of locking-pin which will wedge the parts and remain securely in place. When removed from the position in which it is to be employed, the locking-pin may be conveniently hung upon a projecting pin, as c, or otherwise disposed of.

The vise-screw shown in the drawings is intended to be operated to move the traveling head by reason of a peculiar connection between the screw and the vise-body; but this manner of connection is no part of my present invention, and so far as this invention is concerned the traveling` head may be moved in any preferred way or by any preferred means.

The vise-body A is mounted upon a baseplate F in such manner that it may be turned thereon, so as to bring the work to any desired angle, being connected with the baseplate by any suitable coupling-screw, as G. l/Vhen the desired adjustment has been made, it is necessary that the vise-body be locked to the base-plate in some rigid and unyielding manner and without danger of disarrangement by any use of the vise. To accomplish this unyielding locking, I provide the baseplate on the interior with radially-arranged teeth, Z CZ, the teeth extending entirely around the base-plate. A threaded stud H is mounted in a projection on the vise-body, and this stud carries at its lower end a block I, provided with teeth which will interlock with the teeth Z on the base-plate F. The stud H is turned by a swiveled linger-piece, as K.

Being constructed and arranged for operation substantially in accordance with the foregoing explanations, my improvements will be found to answer all the purposes or objects of the invention hereinbefore alluded to.

Having now fully described my invention, what l claim as new herein, and desire to secure by Letters Patent, is-

l. In abench-vise provided withaswinging or turning head, the combination with said head and the vise-body upon which it is mounted, of a removable wedging-pin interposed between the two and located in an opening cut partly in one and partly in the other, said pin entering the opening at the side of the vise-body and below the overhanging portion IOO IIO

of the swinging head, substantially as and for tially in the manner and for thepurposes set IO the purposes set forth. forth.

2. In a bench-vise provided with a swinging In testimony WhereofI have signed my name or turning' head, the combination with said to this `specification in the presence of two subhead and the vise-body upon which it is mountsoriloing witnesses.

ed, of a removable wedging screw-pin enter- MORTIMER G. LEWIS. ing a threaded opening located partly in the Witnesses:

vise-head and partly in the swinging jaw and C. SEDGWICK,

arranged to look and hold the parts, substan- WORTH OSGOOD. 

